2 # Generates info for Module::CoreList from this perl tree
3 # run this from the root of a perl tree
7 # With an optional arg specifying the root of a CPAN mirror, outputs the
8 # %upstream and %bug_tracker hashes too.
14 use ExtUtils::MM_Unix;
17 use Maintainers qw(%Modules files_to_modules);
19 use Parse::CPAN::Meta;
20 use IPC::Cmd 'can_run';
22 use IO::Uncompress::Gunzip;
24 my $corelist_file = 'dist/Module-CoreList/lib/Module/CoreList.pm';
25 my $pod_file = 'dist/Module-CoreList/lib/Module/CoreList.pod';
31 die "usage: $0 [ cpan-mirror/ ] [ 5.x.y] \n" unless @ARGV <= 2;
33 my $raw_version = shift || $];
34 my $perl_version = version->parse("$raw_version");
35 my $perl_vnum = $perl_version->numify;
36 my $perl_vstring = $perl_version->normal; # how do we get version.pm to not give us leading v?
37 $perl_vstring =~ s/^v//;
39 if ( !-f 'MANIFEST' ) {
40 die "Must be run from the root of a clean perl tree\n";
43 open( my $corelist_fh, '<', $corelist_file );
44 my $corelist = join( '', <$corelist_fh> );
47 my $modlistfile = File::Spec->catfile( $cpan, 'modules', '02packages.details.txt' );
51 if ( -e $modlistfile ) {
52 warn "Reading the module list from $modlistfile";
53 open $fh, '<', $modlistfile;
54 } elsif ( -e $modlistfile . ".gz" ) {
55 my $zcat = can_run('gzcat') || can_run('zcat') or die "Can't find gzcat or zcat";
56 warn "Reading the module list from $modlistfile.gz";
57 open $fh, '-|', "$zcat $modlistfile.gz";
59 warn "About to fetch 02packages from ftp.funet.fi. This may take a few minutes\n";
60 my $gzipped_content = fetch_url('http://ftp.funet.fi/pub/CPAN/modules/02packages.details.txt.gz');
61 unless ($gzipped_content) {
62 die "Unable to read 02packages.details.txt from either your CPAN mirror or ftp.funet.fi";
64 IO::Uncompress::Gunzip::gunzip(\$gzipped_content, \$content, Transparent => 0)
65 or die "Can't gunzip content: $IO::Uncompress::Gunzip::GunzipError";
68 if ( $fh and !$content ) {
70 $content = join( '', <$fh> );
73 die "Incompatible modlist format"
74 unless $content =~ /^Columns: +package name, version, path/m;
76 # Converting the file to a hash is about 5 times faster than a regexp flat
78 for ( split( qr/\n/, $content ) ) {
79 next unless /^([A-Za-z_:0-9]+) +[-0-9.undefHASHVERSIONvsetwhenloadingbogus]+ +(\S+)/;
86 /(\.pm|_pm\.PL)$/ or return;
87 /PPPort\.pm$/ and return;
88 my $module = $File::Find::name;
89 $module =~ /\b(demo|t|private)\b/ and return; # demo or test modules
90 my $version = MM->parse_version($_);
91 defined $version or $version = 'undef';
92 $version =~ /\d/ and $version = "'$version'";
94 # some heuristics to figure out the module name from the file name
95 $module =~ s{^(lib|cpan|dist|(?:symbian/)?ext)/}{}
98 $module =~ s{\b(\w+)/\1\b}{$1},
99 $module =~ s{^B/O}{O},
100 $module =~ s{^Devel-PPPort}{Devel},
101 $module =~ s{^libnet/}{},
102 $module =~ s{^Encode/encoding}{encoding},
103 $module =~ s{^IPC-SysV/}{IPC/},
104 $module =~ s{^MIME-Base64/QuotedPrint}{MIME/QuotedPrint},
105 $module =~ s{^(?:DynaLoader|Errno|Opcode|XSLoader)/}{},
106 $module =~ s{^Sys-Syslog/win32}{Sys-Syslog},
107 $module =~ s{^Time-Piece/Seconds}{Time/Seconds},
109 $module =~ s{^vms/ext}{VMS};
110 $module =~ s{^lib/}{}g;
111 $module =~ s{/}{::}g;
112 $module =~ s{-}{::}g;
113 $module =~ s{^.*::lib::}{}; # turns Foo/lib/Foo.pm into Foo.pm
114 $module =~ s/(\.pm|_pm\.PL)$//;
115 $lines{$module} = $version;
116 $module_to_file{$module} = $File::Find::name;
126 -e 'configpm' and $lines{Config} = 'undef';
128 if ( open my $ucdv, "<", "lib/unicore/version" ) {
129 chomp( my $ucd = <$ucdv> );
130 $lines{Unicode} = "'$ucd'";
134 my $delta_data = make_corelist_delta($perl_vnum, \%lines);
135 my $versions_in_release = " " . $perl_vnum . " => {\n";
136 $versions_in_release .= " delta_from => $delta_data->{delta_from},\n";
137 $versions_in_release .= " changed => {\n";
138 foreach my $key (sort keys $delta_data->{changed}) {
139 $versions_in_release .= sprintf " %-24s=> %s,\n", "'$key'",
140 defined $delta_data->{changed}{$key} ? "'"
141 . $delta_data->{changed}{$key} . "'" : "undef";
143 $versions_in_release .= " },\n";
144 $versions_in_release .= " removed => {\n";
145 for my $key (sort keys($delta_data->{removed} || {})) {
146 $versions_in_release .= sprintf " %-24s=> %s,\n", "'$key'", 1;
148 $versions_in_release .= " }\n";
149 $versions_in_release .= " },\n";
151 $corelist =~ s/^(my %delta\s*=\s*.*?)(^\);)$/$1$versions_in_release$2/ism;
153 exit unless %modlist;
155 # We have to go through this two stage lookup, given how Maintainers.pl keys its
156 # data by "Module", which is really a dist.
157 my $file_to_M = files_to_modules( values %module_to_file );
160 open my $fh, "<:utf8", "$_[0]"
161 or die "can't open $_[0] for reading: $!";
162 return do { local $/; <$fh> };
165 sub parse_cpan_meta($) {
166 return Parse::CPAN::Meta->${
167 $_[0] =~ /\A\x7b/ ? \"load_json_string" : \"load_yaml_string"
171 my %module_to_upstream;
173 my %dist_to_meta_YAML;
174 my %module_to_deprecated;
175 while ( my ( $module, $file ) = each %module_to_file ) {
176 my $M = $file_to_M->{$file};
178 next if $Modules{$M}{MAINTAINER} && $Modules{$M}{MAINTAINER} eq 'p5p';
179 $module_to_upstream{$module} = $Modules{$M}{UPSTREAM};
180 $module_to_deprecated{$module} = 1 if $Modules{$M}{DEPRECATED};
182 if defined $module_to_upstream{$module}
183 && $module_to_upstream{$module} =~ /^(?:blead|first-come)$/;
184 my $dist = $modlist{$module};
186 warn "Can't find a distribution for $module\n";
189 $module_to_dist{$module} = $dist;
191 next if exists $dist_to_meta_YAML{$dist};
193 $dist_to_meta_YAML{$dist} = undef;
195 # Like it or lump it, this has to be Unix format.
196 my $meta_YAML_path = "authors/id/$dist";
197 $meta_YAML_path =~ s/(?:tar\.gz|tar\.bz2|zip|tgz)$/meta/ or die "$meta_YAML_path";
198 my $meta_YAML_url = 'http://ftp.funet.fi/pub/CPAN/' . $meta_YAML_path;
200 if ( -e "$cpan/$meta_YAML_path" ) {
201 $dist_to_meta_YAML{$dist} = parse_cpan_meta(slurp_utf8( $cpan . "/" . $meta_YAML_path ));
202 } elsif ( my $content = fetch_url($meta_YAML_url) ) {
204 warn "Failed to fetch $meta_YAML_url\n";
207 eval { $dist_to_meta_YAML{$dist} = parse_cpan_meta($content); };
208 if ( my $err = $@ ) {
209 warn "$meta_YAML_path: ".$err;
213 warn "$meta_YAML_path does not exist for $module\n";
215 # I tried code to open the tarballs with Archive::Tar to find and
216 # extract META.yml, but only Text-Tabs+Wrap-2006.1117.tar.gz had one,
217 # so it's not worth including.
222 my $upstream_stanza = "%upstream = (\n";
223 foreach my $module ( sort keys %module_to_upstream ) {
224 my $upstream = defined $module_to_upstream{$module} ? "'$module_to_upstream{$module}'" : 'undef';
225 $upstream_stanza .= sprintf " %-24s=> %s,\n", "'$module'", $upstream;
227 $upstream_stanza .= ");";
229 $corelist =~ s/^%upstream .*? ;$/$upstream_stanza/ismx;
231 # Deprecation generation
232 my $deprecated_stanza = " " . $perl_vnum . " => {\n";
233 foreach my $module ( sort keys %module_to_deprecated ) {
234 my $deprecated = defined $module_to_deprecated{$module} ? "'$module_to_deprecated{$module}'" : 'undef';
235 $deprecated_stanza .= sprintf "\t%-24s=> %s,\n", "'$module'", $deprecated;
237 $deprecated_stanza .= " },\n";
238 $corelist =~ s/^(%deprecated\s*=\s*.*?)(^\);)$/$1$deprecated_stanza$2/xism;
240 my $tracker = "%bug_tracker = (\n";
241 foreach my $module ( sort keys %module_to_upstream ) {
242 my $upstream = defined $module_to_upstream{$module};
245 and $upstream eq 'blead' || $upstream eq 'first-come';
249 my $dist = $module_to_dist{$module};
250 $bug_tracker = $dist_to_meta_YAML{$dist}->{resources}{bugtracker}
252 $bug_tracker = $bug_tracker->{web} if ref($bug_tracker) eq "HASH";
254 $bug_tracker = defined $bug_tracker ? quote($bug_tracker) : 'undef';
255 next if $bug_tracker eq "'http://rt.perl.org/perlbug/'";
256 $tracker .= sprintf " %-24s=> %s,\n", "'$module'", $bug_tracker;
260 $corelist =~ s/^%bug_tracker .*? ;/$tracker/eismx;
263 $corelist =~ /^%released \s* = \s* \(
269 warn "Adding $perl_vnum to the list of released perl versions. Please consider adding a release date.\n";
270 $corelist =~ s/^(%released \s* = \s* .*?) ( \) )
271 /$1 $perl_vnum => '????-??-??',\n $2/ismx;
274 write_corelist($corelist,$corelist_file);
276 open( my $pod_fh, '<', $pod_file );
277 my $pod = join( '', <$pod_fh> );
279 unless ( $pod =~ /and $perl_vstring releases of perl/ ) {
280 warn "Adding $perl_vstring to the list of perl versions covered by Module::CoreList\n";
281 $pod =~ s/(currently\s+covers\s+(?:.*?))\s*and\s+(.*?)\s+releases\s+of\s+perl/$1, $2 and $perl_vstring releases of perl/ism;
284 write_corelist($pod,$pod_file);
286 warn "All done. Please check over $corelist_file and $pod_file carefully before committing. Thanks!\n";
291 my $filename = shift;
292 open (my $clfh, ">", $filename);
294 print $clfh $content;
300 my $http = HTTP::Tiny->new;
301 my $response = $http->get($url);
302 if ($response->{success}) {
303 return $response->{content};
305 warn "Error fetching $url: $response->{status} $response->{reason}\n";
310 sub make_corelist_delta {
311 my($version, $lines) = @_;
312 # Trust core perl, if someone does use a weird version number the worst that
313 # can happen is an extra delta entry for a module.
314 my %versions = map { $_ => eval $lines->{$_} } keys %$lines;
316 # Ensure we have the corelist data loaded from this perl checkout, not the system one.
317 require $corelist_file;
320 # Search for the release with the least amount of changes (this avoids having
321 # to ask for where this perl was branched from).
322 for my $previous(reverse sort keys %Module::CoreList::version) {
323 # Shouldn't happen, but ensure we don't load weird data...
324 next if $previous > $version || $previous == $version && $previous eq $version;
326 my $delta = $deltas{$previous} = {};
327 ($delta->{changed}, $delta->{removed}) = calculate_delta(
328 $Module::CoreList::version{$previous}, \%versions);
331 my $smallest = (sort {
332 (keys($deltas{$a}->{changed}) + keys($deltas{$a}->{removed})) <=>
333 (keys($deltas{$b}->{changed})+ keys($deltas{$b}->{removed}))
337 delta_from => $smallest,
338 changed => $deltas{$smallest}{changed},
339 removed => $deltas{$smallest}{removed},
343 # Calculate (changed, removed) modules between two versions.
344 sub calculate_delta {
346 my(%changed, %removed);
348 for my $package(keys $from) {
349 if(not exists $to->{$package}) {
350 $removed{$package} = 1;
354 for my $package(keys $to) {
355 if(!exists $from->{$package}
356 || (defined $from->{$package} && !defined $to->{$package})
357 || (!defined $from->{$package} && defined $to->{$package})
358 || (defined $from->{$package} && defined $to->{$package}
359 && $from->{$package} ne $to->{$package})) {
360 $changed{$package} = $to->{$package};
364 return \%changed, \%removed;
369 # There's gotta be something already doing this properly that we could just
370 # reuse, but I can't quite thing of where to look for it, so I'm gonna do
371 # the simplest possible thing that'll allow me to release 5.17.7. --rafl